1/10 of 9 is 0.9. 0.99 is 1/10 larger (/100, x110%). So 9 would be in the hundredths position
decimal
3.9
To round a number to the nearest tenth, you look at the digit in the hundredths place. For the number 13.07, the hundredths digit is 7. Since 7 is 5 or greater, you round up the tenths place (0) by 1, resulting in 13.1.
To round 2.21 to the nearest tenth, you look at the hundredths place, which is the second digit after the decimal point. In this case, the number is 2.21, and the digit in the hundredths place is 1. Since 1 is less than 5, you round down, keeping the tenths place the same. Therefore, 2.21 rounded to the nearest tenth is 2.2.
To round 13.09 to the nearest tenth, we look at the digit in the hundredths place, which is 0. Since 0 is less than 5, we keep the digit in the tenths place the same. Therefore, 13.09 rounded to the nearest tenth is 13.1.
decimal
32.6
3.9
22.4
18.8
40.8
8.1
To round 29.4 to the nearest tenth, we look at the digit in the hundredths place, which is 4. Since 4 is less than 5, we keep the digit in the tenths place the same, resulting in 29.4 rounded to the nearest tenth.
45.3
29.1
36.7
To round 13.09 to the nearest tenth, we look at the digit in the hundredths place, which is 0. Since 0 is less than 5, we keep the digit in the tenths place the same. Therefore, 13.09 rounded to the nearest tenth is 13.1.